Box-sealing machine



Dec. 19,1922.

1,438,994. R. M. GARRETT. BOX SEALING MACHINE.

FILED JULY 1, 1922. v z sntns-snzn 1.

g Y atbowiu l Dec. 19, 1922. 1,438,994.

R. M. GARRETT. BOX SEALING MACHINE.

FILED J LY 7, 1922. ZSHEETS-SHEET 2.

IHIHH g I U E 1.

Hill.

Patented Dec. 19, 1922.

UNITED STATES;

RICHARD M. sesame, or vonxnns, NEW irons, assreuon ro nns'rrns noon COMPANY, on NEW YORK, 1v.

A CORPORATION OF NEW YORK.

. Box-snnnrlve MACHINE.

Application filed. July 7,

able others skilled in the art to which it appertains to make and use the same.

My invention consists in certain new and useful improvements in box -sealing machines, and has for its object to provide a machine of this kind which will. insure the flaps of a box being glued snugly together, obviating any separation of the meeting edges of the bottom of the box.

Another object of my invention is to provide a machine which will do away with the necessity of manual effort in pushing the flaps of a box together.

Heretofore in using a box pasting machine, it has been necessary for the operator to push the flaps inwardly with his fingers,

and before the two platens came together to seal the box, he had to withdraw his hands to keep them from being injured. This allowedthe flaps to spring back, and left a crack in the bottom of the box, when the sealing operation was completed.

With my improved construction it is not necessary for the operator to use his fingers in contracting the flaps of the box, as the top platen is provided with pivotally mounted spring actuated fingers and crowding arms which, as the top platen comes down, press the flaps together.

WVith the above and other objects in view which will appear as the description proceeds, the invention consists in the novel features herein set forth, illustrated in the accompanying drawings and more partie ularly pointed out in the appended claims.

In the drawings, numerals of like character designate similar parts through the several views.

Fig. 1 is an end view of my device showing the pivotally mounted fingers.

Fig. 2 is a side elevation with a portion ELI'IDS.

1922. Serial No. 573,378.

Figs. 4 and 5 are detail views of the top platen.

1 represents the frame, which is adapted to be secured to the floor, and which supports the working parts of my machine. This frame is provided with bearings 2 for the arm 3 of the pivotally mounted lower platen 4:.

Secured to the lower portion of the arm 3, is a bumper 5 which registers with the stop6, and regulates the radial movement of the platen 4, as shown in Fig. 2, when a box is to be placed thereon. In, order to insure the firmness of the machine, I provide a brace '7 which is secured to the frame work 1 at the upper end, and to the floor at the lower end.

At the upper'end of the frame 1, I provide a platen 8, which is secured to one end of a plunger 9, said plunger being slidably mounted in a bearing 10, and being rounded at its upper end. At the extreme upperend of the frame 1, I provide another bearing 11, in which is pivotally mounted a cam lever 12, which engages the rounded end of the plunger 9, and by means of whichthe platen 8 may be forced downwardly.

This top platen S is provided on its upper side with two sets of pivotally mounted fingers .13, which rock in the bearings 14. and the inner ends of which project downwardly through apertures 15 in the platen, said inner ends being provided with gripping means 16 for the flaps of a box to be sealed.' These gripping means may consist of rubber, felt, or roughened metal surfaces,

or other suitable material.

To the outer ends of these fingers are secured crowding arms 17 which are in the form of strips extending lengthwise of the platen and which when the top platen comes down, are forced inwardly toward one another, crowding the flaps of the box snugly together for sealing.

These arms 17 are secured to the fingers 13 by means of nuts and bolts 18 and are provided with springs 19 which allow them to possess a slight resiliency.

The fingers 13 are held in operative position by means of springs 20, which extend from the frame 1, and can be readily adjusted to give any desired movement required to force the flaps of the box together.

The operation of my device is obvious. The box is placed in an inverted position on the forming platen at, which is in the position the spiritoit the invention as ClZLlIIlS;

goes.

a As this platen 8 nears the bottom platen the fingers 13 are brought into action, pushing the box flaps dowi'iwardly and'inwardly at the same time, plate are almost in contact with each other, theoi'owding arms 17 are brought into action by the fingers 13 rocking on their pivots, and crowd the together. i v

flaps of the box lit will be readily seen that there is no danger of the crowding actionscausing the flaps of the box to telescope or overlap, as the lingers 13 are snug ag'gainst the flaps of the lOOX, holding them down against the bottom platen 4. p 1 YWhen the cam lever "12 is released the springs 20 raise the platen 8 to its normal position.

From the foregoing it believed that the invention may be fully understood without further description and it is obvious that DHlllGL'OlIS changes may he made in de tails of construction, without departing trorn expressed in the What I claim and desire to secure by Letters Patent is i 1. A box sealing machine comprish 3 a pair oi. platens, means "for forcing one ol' aid platens towards the other, and-i gidineans pivotally mounted on one of said platens for crowding the flaps of a box together to insure a tightjoint.

2. A box sealingmachine including a pair of platens, means for moving one of said platens toward the other, and pivotally -mounted'rigid means associatedwith one of said platens for forcing the flaps of a box to- W hen tie two 4 nesenea- Jtens and provided with crowding arms adapted to force the opposite sides of a box toward one 'anot-her when said fingers engage the box flaps in the movement of. the movable platen toward the otherplaten';

4-. A box sealing machine as claimed in claim 3, in which the fingers and crowding arms are held. in operative position bymeans of springs.

5. A hex sealing machine as: claimed in claim 3, in which the fingers are provided on their inner ends with gripping means;

6. A box sealing machine as claimed in claim a, in which the "crowding arms consist of elongated strips secured to the outer ends of said fingers." r 1 7, A box sealing machine including a pair of platens, means for moving one of said platens toward the other, fingers pivotally mounted on the movable platen and having gripping ends extending beyond the face of the movable platen which is opposite to the surface of the other iplatenga'nd crowding arms operatively connected with said fingers andadapted to be actuated by said fingers for crowding opposite sides of a box, ar-

other. i v a i 8; A box sealing machine ncluding a pan oi"platens means for moving one o: said ranged on one of the platens, toward one anplatens toward the other, fingers movably connecteil to one ot'said platens and adapted to operate when the movable platenis'moved toward the otherplaten for causing the flapsoi a box to move toward one another, and means actuated by said fingers ton forcing the opposite sides of the boX toward one another while the flaps are being laid.

in testimony whereo't l ahix my si 'nature.

RICHARD M; eiimth'rr 

